Surgical retractor system

• US 7,001,333 B2
• Filed: 12/10/2002
• Issued: 02/21/2006
• Est. Priority Date: 12/20/2000
• Status: Expired due to Term

• Current Assignee: Synthes USA LLC (Johnson & Johnson)
• Original Assignee: HFSC Company
• Inventors: Hamel, Ross J., Kerr, Sean, Velikaris, James
• Primary Examiner(s): REIP, DAVID OWEN
• Application Number:
  US10/315,658
• Publication Number:
  US 20030195392A1
• Time in Patent Office: 1,169 Days
• Field of Search: 600/201, 600/213, 600/210, 600/208, 600/226, 600/227, 600/235, 600/237, 600/242, 411/337, 411/356, 411/347, 606/104, 606/190
• US Class Current: 600/242
• CPC Class Codes: A61B 1/32 Devices for opening or enlarging the visual field, e.g. of a tube of the body dilators A61M29/00
• CPC Class Codes: A61B 17/02 for holding wounds open; Tractors specula A61B1/32 ; drainage appliances for wounds A61M27/00
• CPC Class Codes: A61B 17/0218 for minimally invasive surgery A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/0281 Abdominal wall lifters
• CPC Class Codes: A61B 17/17 Guides or aligning means for drills , mills, pins or wires
• CPC Class Codes: A61B 17/24 for use in the oral cavity, larynx, bronchial passages or nose for medical inspection of cavities or tubes in the body A61B1/00; Tongue scrapers
• CPC Class Codes: A61B 17/34 Trocars; Puncturing needles pointed biopsy instruments A61B10/0233; devices for piercing the ear-lobes A44C7/001; seals or hemostasis valves A61M39/06
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 2017/00265 Hand assisted surgery, i.e. minimally invasive surgery with at least part of an assisting hand inside the body
• CPC Class Codes: A61B 2017/0042 with special provisions for gripping
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable for prosthetic joint-implanting tools A61F2/4603
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/348 Means for supporting the trocar against the body or retaining the trocar inside the body
• CPC Class Codes: A61B 2017/3482 inside
• CPC Class Codes: A61B 2017/349 Trocar with thread on outside
• CPC Class Codes: A61B 2017/3492 against the outside of the body

Abstract

The present invention provides an improved surgical retractor system useful for holding tissue away from a surgical site during a medical or dental procedure. In one embodiment, the surgical retractor system is comprised of a tubular member, such as a cannula, and a retractor member. In an embodiment, the retractor member may be ring shaped. The retractor member preferably may have an opening therethrough for receiving the cannula. An engaging member associated with the retractor member may be provided for rotatably engaging the cannula. In one embodiment, the cannula may have external threads that are releaseably engaged with the engaging member and allows the degree or amount of tissue retraction to be adjusted. The cannula may be configured to be used with and secured to a handle to facilitate using the retractor system. A method of using the retractor system is also disclosed.

Claims

1. A system for retracting tissue, the system comprising:

a cannula having an axial length, at least a portion of the cannula having external circumferential threads; and

a retractor member having an opening configured to receive the cannula therethrough, internal threads associated with the opening, and an engaging member associated with and protruding at least partially into the opening for engaging the threads on the cannula, the retractor member adjustable along the axial length of the cannula.

2. The system of claim 1 further comprising a handle configured to releasably secure the cannula to the handle, the handle having a retractable slider pin for securing the cannula to the handle.

3. The system of claim 2 further comprising the cannula having a circumferential groove to engage the slider pin, the cannula capable of being rotated while being secured to the handle.

4. The system of claim 3 further comprising the handle having a handle lock assembly having a body with a top and a bottom, and an opening disposed in the handle body for receiving the cannula, the opening extending from the top to the bottom of the body, the retractable slider pin being movable from an extended position in which the pin protrudes into the opening to a retracted position in which the pin is withdrawn from the opening.

5. The system of claim 1 wherein the engaging member is a pin or screw protruding at least partially into the opening in the retractor.

6. A method of retracting tissue for a surgical procedure, the method comprising:

providing a cannula having a distal end and a proximal end;

providing a retractor member having an opening therethrough for receiving the cannula, the retractor member having an engaging member for engaging the cannula;

inserting the cannula through a first bodily opening;

inserting the retractor member through a second bodily opening;

guiding the distal end of the cannula into the opening of the retractor;

rotating the cannula or the retractor member to engage the retractor member and the cannula,

whereby the tissue may be adjustably withdrawn from the distal end of the cannula.

7. The method of claim 6 wherein the retractor member and the cannula are rotatably engaged.

8. The method of claim 7 further comprising the cannula having an external surface with circumferential threads disposed on at least a portion of the external surface and the retractor member further comprises threads disposed on a surface of the retractor member surrounding the opening for receiving the cannula.

9. The method of claim 8 wherein the cannula is rotated to threadably engage the retractor member and the cannula.

10. The method of claim 9 wherein the retractor member is rotated to threadably engage the retractor and the cannula.

11. The method of claim 9 wherein the engaging member is a pin or screw having a tip protruding at least partially into the opening of the retractor.

12. The method of claim 6 wherein the first bodily opening is a first incision in the tissue of a patient and the second bodily opening is a second incision in the tissue of a patient.

13. The method of claim 6 wherein the first bodily opening is a first incision in the tissue of a patient and the second bodily opening is the mouth of a patient.

14. The method of claim 6 further comprising the step holding the retractor member in a substantially stationary position with a tool while the cannula is rotated to engage the retractor member.

15. A retractor kit comprising:

a cannula having external threads on at least a portion thereof;

a retractor member having an opening configured and adapted to receive the cannula, the retractor having an engaging member that is engageable with the external threads of the cannula;

a handle having a grasping portion and a handle lock assembly for holding the cannula;

wherein rotation of the cannula or the retractor member rotatably engages the retractor member with the cannula.

16. The kit of claim 15 further comprising an obturator that is configured and adapted to be inserted into the cannula.

17. A surgical retractor system comprising:

an elongated tubular member having external threads disposed on at least part of the tubular member; and

a retractor member having an opening configured and adapted to receive the tubular member, the retractor having an engaging member for engaging the tubular member, the engaging member has a blunted tip protruding at least partially into the opening of the retractor member for engaging the external threads of the tubular member;

wherein rotation of the tubular member or the retractor member rotatably engages the retractor with the tubular member, and wherein the external threads rotatably engage the engaging member of the retractor.

18. A surgical retractor system comprising:

an elongated tubular member having external threads disposed on at least part of the tubular member; and

a retractor member having an opening configured and adapted to receive the tubular member, the retractor having an engaging member for engaging the tubular member, the engaging member comprises a screw and the retractor member has a threaded hole communicating with the opening of the retractor member, the screw being disposed in the threaded hole;

wherein rotation of the tubular member or the retractor member rotatably engages the retractor with the tubular member, and wherein the external threads rotatably engage the engaging member of the retractor.

19. A surgical retractor system comprising:

an elongated tubular member; and

a retractor member having an opening configured and adapted to receive the tubular member, the retractor having;

at least one hole configured to engage at least part of a surgical instrument for manipulating the retractor member; and

an engaging member for engaging the tubular member;

wherein rotation of the tubular member or the retractor member rotatably engages the retractor with the tubular member.

20. A cheek retractor system comprising:

a cannula having threads disposed on at least a portion of the cannula;

a retractor member having an opening therethrough for receiving the cannula; and

an engaging member associated with the retractor member, the engaging member rotatably engaging the cannula;

wherein the engaging member is a screw having a tip, the tip of the screw protruding at least partially into the opening of the retractor for engaging the cannula.

21. A cheek retractor system comprising:

a cannula having threads disposed on at least a portion of the cannula;

a retractor member having a top surface, a bottom surface, a side surface, and at least one hole extending at least partially through the side surface for engaging part of a surgical instrument to manipulate the retractor member, and an opening therethrough for receiving the cannula; and

an engaging member associated with the retractor member, the engaging member rotatably engaging the cannula.

22. The system of claim 21 further comprising at least one hole extending from the top surface to the bottom surface of the retractor member for manipulating the retractor member.

23. A cheek retractor system comprising:

a cannula having threads disposed on at least a portion of the cannula;

a retractor member having an opening therethrough for receiving the cannula;

an engaging member associated with the retractor member, the engaging member rotatably engaging the cannula; and

at least two holes extending at least partially through the retractor member, the at least two holes each configured to receive part of a tool for manipulating the retractor member.

24. A cheek retractor system comprising:

a cannula having threads disposed on at least a portion of the cannula;

a retractor member having an opening therethrough for receiving the cannula; and

an engaging member associated with the retractor member, the engaging member rotatably engaging the cannula;

wherein the engaging member comprises a tip protruding at least partially into the retractor member opening.

25. The device of claim 24 wherein the engaging member is a screw that is threadably connected to the retractor member.

26. The device of claim 24 wherein the engaging member is a pin.

27. The device of claim 24 wherein the engaging member comprises threads disposed in the retractor opening.

28. A system for retracting tissue, the system comprising:

a cannula having an axial length, at least a portion of the cannula having external circumferential threads;

a retractor member having an opening configured to receive the cannula therethrough and an engaging member associated with and protruding at least partially into the opening for engaging the threads on the cannula, the retractor member adjustable along the axial length of the cannula; and

a handle configured to releasably secure the cannula to the handle, the handle having a retractable slider pin for securing the cannula to the handle.

29. The system of claim 28 further comprising the cannula having a circumferential groove to engage the slider pin, the cannula capable of being rotated while being secured to the handle.

30. The system of claim 29 further comprising the handle having a handle lock assembly having a body with a top and a bottom, and an opening disposed in the handle body for receiving the cannula, the opening extending from the top to the bottom of the body, the retractable slider pin being movable from an extended position in which the pin protrudes into the opening to a retracted position in which the pin is withdrawn from the opening.

31. The system of claim 28 wherein the engaging member is a pin or screw protruding at least partially into the opening in the retractor.

32. The system of claim 28 wherein the engaging member is formed by the retractor member having internal threads associated with the opening for receiving the cannula.

33. A system for retracting tissue, the system comprising:

a cannula having an axial length, at least a portion of the cannula having external circumferential threads; and

a retractor member having an opening configured to receive the cannula therethrough and an engaging member associated with and protruding at least partially into the opening for engaging the threads on the cannula, the retractor member adjustable along the axial length of the cannula;

wherein the engaging member comprises at least one of a pin and a screw protruding at least partially into the opening in the retractor.

34. The system of claim 33 further comprising a handle configured to releasably secure the cannula to the handle, the handle having a retractable slider pin for securing the cannula to the handle.

35. The system of claim 34 further comprising the cannula having a circumferential groove to engage the slider pin, the cannula capable of being rotated while being secured to the handle.

36. The system of claim 35 further comprising the handle having a handle lock assembly having a body with a top and a bottom, and an opening disposed in the handle body for receiving the cannula, the opening extending from the top to the bottom of the body, the retractable slider pin being movable from an extended position in which the pin protrudes into the opening to a retracted position in which the pin is withdrawn from the opening.

37. The system of claim 33 wherein the engaging member also comprises internal threads associated with the opening of the retractor member for receiving the cannula.